Treating Spider Mites on Coral Cactus with Soapy Water Spray

Simple, Effective Control

Red specks on a coral cactus (Euphorbia lactea crest) are likely spider mites. Avoid oils and chemical miticides—they often kill the plant.

Treatment

1. Mix liquid dish soap in water (normal dishwashing strength).
2. Spray thoroughly until all surfaces drip.
3. Wait 1 week; repeat.

Why Soap Works

The soap film blocks the mites' spiracles (breathing pores), suffocating them. No residue buildup, no phytotoxicity on cacti.

Prevention

Keep plant in bright light, water sparingly, and inspect weekly. Quarantine new plants.